A collection of metro fiber maps for the Maryland, Delaware, and Washington DC metro area, including the major hubs in northern Virginia. Other Virginia metro areas will be found on the Virginia and the Carolinas page, a geographical division that seems to make more sense than the alternative.
| Company | Maps | Lit/Dark | Comments |
|---|---|---|---|
| Abovenet | DC Central Business District, DC Metro, Baltimore CBD, Baltimore Metro, Wilmington DE | both | |
| Fibergate | DC Metro Area | dark | Detailed fiber maps for many communities from this page |
| Fiberlight | DC Metro, Culpeper VA, Baltimore | both | |
| Fibertech | Montgomery County MD, Wilmington DE | both | Registration required |
| Intellifiber | DC Metro, Baltimore, Wilmington | both | Google Earth format |
| Level 3 | DC Metro, Baltimore Metro | both | |
| RCN Metro | Interactive | both | Click on DC area icon for metro map |
| Zayo | DC Metro, Baltimore, Baltimore County | both | |
| Cogent | DC Metro, Baltimore | lit | on-net buildings tool |
| TW Telecom | DC Metro, Baltimore | both | |
| XO | DC Metro, Baltimore | both |
All links are to material offered on the websites of the company operating the fiber, I do not usually host them locally and generally will not link to third party maps – not that there are many of those. Where available, links to on-net building lists are also given.
Additional maps of metro fiber networks that ought to be on this list are very welcome, as are corrections to the above links. Please just leave a comment below or send an email to info@telecomramblings.com.
Now added to the list: Fibergate for the DC Metro area. My thanks to the reader who passed along the link!